import type { $Chronos, DayPart, DayPartConfig } from '../types';
declare module '../Chronos' {
    interface Chronos {
        /**
         * @instance Returns the part of day (`'midnight', 'lateNight', 'night', 'morning', 'afternoon', 'evening'`) based on the current hour.
         *
         * *Supports both normal and wraparound (overnight) ranges.*
         *
         * @param config - Optional custom hour ranges for each part of day.
         *                 Each range must be a tuple of strings as `[startHour, endHour]` in 24-hour format (e.g., `['06', '11']`).
         *                 Supports wraparound ranges like `['22', '04']` that cross midnight.
         *
         *                 **Default Ranges:**
         *                 - night: ['21', '23']
         *                 - midnight: ['00', '01']
         *                 - lateNight: ['02', '04']
         *                 - morning: ['05', '11']
         *                 - afternoon: ['12', '16']
         *                 - evening: ['17', '20']
         *
         * @returns The current part of the day as a string.
         *
         * @example
         * chronosInstance.getPartOfDay(); // e.g., 'morning'
         *
         * @example
         * // Example with custom ranges
         * chronosInstance.getPartOfDay({
         *   night: ['22', '04'],
         *   morning: ['05', '11'],
         *   afternoon: ['12', '16'],
         *   evening: ['17', '21'],
         *   lateNight: ['01', '03'],
         *   midnight: ['00', '00'],
         * });
         */
        getPartOfDay(config?: Partial<DayPartConfig>): DayPart;
    }
}
/** * Plugin to inject `getPartOfDay` method */
export declare const dayPartPlugin: ($Chronos: $Chronos) => void;